Lock mechanism for safes and vaults



(Model.)

H. GROSS.

LOCK MEGHANISM POR SAPBS AND VAULTS. y No. 342,005. Patented May 18,1886.

W Jf/Jb/Iju 1"" Lgf-.5 Q5]U I o pt y Lb O UNITED S'rntrne afrninrOttimi@ HENRY GROSS, OF CHICAGO, ILLINOIS.

LOCK MECHANlSlll/l FOR SAFES AND VAULTS.

SPECIFICATION forming part of Letters Patent No. 342,005, dated May18,1886.

Application filed September 2G, 1885. Serial No. lTSfiil. (Model.)

To all whom t may concerns Be itknown that I, HENRY GROSS, a citizen ot'the United States, residing at Chicago, county of Cook, and State ofIllinois, have invented certain new and useful Improvements in LockMechanism for Safes and Vaults, of which I do declare the following tobe a full, clear, and exact description, reference being had to theaccompanying drawings, forming part of this specification.

My present invention relates particularly to that class ot' lockmechanism known as permutation-locks,77 and has for its object, rst, tosimplify the means whereby the driving-tumbler of the permutationspindle may throw the bolt-work out of engagement with the turning-knob,and, second, to provide means whereby, in event the permutation isbroken or blown off in an attempt to forcibly open'the safe, the removalof the permutation-work will cause a detent to come into operation andhold the bolt mechanism out of engagement with the disk ot' theturning-ar bor, so that the bolt mechanism cannot be operated.

To this end my invention consists in the combination, with thepermutationspindle and driving-tumbler, of a yokeearrying thetuinbler-fence and provided with a lifting-arm for throwing the boltmechanism outofaction.

My invention also consists in the combination, with the permutation-workand the boltwork, of a detent for holding the bolt-work out ofengagement with its turning-disk anda suitable stop for retaining suchdetent out ot' action while the permutation work is in its properposition.

My invention further consists in certain novel details of constructionhereinafter described, illustrated in the accompanying drawings, andparticularly defined in the claims at the end of this specification.

Figure l is a view in side elevation of a permutation-lock embodying myinvention, parts being removed and parts being broken away for thepurpose oi' better illustration.

` Fig. 2 is a view in vertical transverse section through the dialarborand tumblers of the lock. Fig. 3 is a plan view of my improved lockmechanism.

A designates the door of a safe or vault, and

B denotes the casing of the pernmtation mechanism, that is suit-ablyattached thereto.

Through the door A extends the spindle c ofthe usual dial-knob, C, andupon the threaded end of this spindle is keyed the driving-tumbler D, ofthe permutation mechanism, having the notch d formed in its periphery,and provided with the pin d, that operates the notched tumblers E ofthelock.

Around the driving-tumbler D'extends the yoke F, that is retainedagainst the wall of the casing, in a. manner free to slide in vertical'direotion, by means of the screw-platesf. The opening of this yokeis, as seen, consid erably larger in diameter than the drivingtumbler,and from the face of the yoke projects the fence F', that is caught bythe permutation-tumblers when the notches of these tumblers are broughtinto alignment.

About midway the periphery ofthe yoke F is formed the lifting-arm F2,that extends through a slot in the casing B, and this arin, as well asthe fence, is preferably cast integral With the yoke.

To the wall of the door is suitably connected the bolt-work, whichcomprises the bar G, to which the bolts will be attached in the usualmanner, the bolt-plate H, that is held in a manner free to slide uponthe screws h, that enter the slot h', and the bolt-link K, that ispivotally connected to the boltplate H by means of the screw 7c. Thebolt-link K is provided upon its under side with alug or shoulder, t, atits inner end, adapted to be struck by the outer end of the liftingarmFAz and at its opposite end with the slot k2, by which will be caughtthe stud Z of the turningdisk L, by means of which the bolt-work will bethrown. The arbor Z ot` the disk L will extend through the door of thesafe, and will be provided with a turning-knob in the usual manner.

To the inner face of the door, and prefera` bly in the relative positionshown by the drawings, is attached the detent M, that serves to hold thebolt-work out of engagement with the turning-disk when the permutationmechanism has been displaced. This detent consists, preferably, of athin bent spring-plate, which is pressed toward the door by the stop barN, Vthat is attached to the casing B of the IOO \ means for lifting thebolt-link, and thus disengaging the bolt-work from the turning-disk. Itwill also loe seen thatin case of any attempt to force open the safe byknocking or blowing off the permutation mechanism the detent M willserve t0 hold the bolt-link elevated in such manner that,notwithstanding the displacement of the lock mechanism, the boltworkcannot be operated by the turning-knob. So long, however, as thepermutation mechanism is in proper .position the detent will loe out ofaction.

It will be readily understood that the precise form and location of thedetent M may be modified, and the details of construction above set outmay also loe modified without departing from the spirit of my invention.

Having thus described my invention, what VI claim as new, and desire tosecure by Letters 1. In lock mechanism, the combination, with thepermutation-spindle and drivingtumbler, ot' ayoke carrying thetumbler-fence and provided with a lifting-arm for throwing the boltmechanism out of action, substantially as described.

2. In lock mechanism, the combination, with the permutation-spindle anddrivingtumbler, of the sliding yoke encircling said tumbler and providedwith the tumbler-fence lifting-arm, the bolt-link K, having shoulder7c', and the bolt-plate H, substantially as described.

v 3. In lock mechanism, the combination, with suitable permutation-workand boltwork, of a detent for holding the bolt-work out of engagementwith the turning-disk and a suitable stop for retaining the detent outof action while the permutation-work isin proper place, substantially asdescribed.

4. In lock mechanism, the combination, with the permutation-work and thebolt-work having the link-bar K, provided with the shoulder 7c', of thespring-detent M and a suitable s'top for holding the spring-detentnormally out of engagement with the link-bar, substantially asdescribed.

5. In lock mechanism, the combination of the permutation-casing providedwith the stop or` arm N, the spring-detent M, the pivoted link-bar K,having shoulders 7c', the sliding bolt-plate H, and the turning-disk L,substantiall y as described.

' HENRY Gnoss.

Witnesses:

GEO. P. FISHER, Jr., JAMEs H. PEIRoi-l.

